Get yourself the stormriders guide to europe, and even better, the big blue surf guide to spain, i can't recommend this enough. http://www.surfing-waves.com/Browse/sur ... el-guides/
That book covers waves, towns, where to eat, stay, how much, when and where, it's damn brilliant.
you can also buy it from amazon.co.ukhttp://www.amazon.co.uk/exec/obidos/ASI ... lossfor-20
have fun, i'll be there somewhere myself this aug/sep